package com.vvasiuta;


import java.sql.*;

//;
import java.io.Serializable;
 
//import javax.persistence.Entity;


public class Main{

	// JDBC driver name and database URL
        static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
        static final String DB_URL = "jdbc:mysql://localhost/test";
        
        //  Database credentials
        static final String USER = "root";
        static final String PASS = "";



    public static void main(String[] args)
    {
        System.out.println("Hello World!");
        //Calculator calc=new Calculator();
        //System.out.println("2+2="+calc.sum(2,2));
        
        
        
        
        Connection conn = null;
        Statement stmt = null;
        try{
            //STEP 2: Register JDBC driver
            Class.forName("com.mysql.jdbc.Driver");
            
            //STEP 3: Open a connection
            System.out.println("Connecting to database...");
            conn = DriverManager.getConnection(DB_URL,USER,PASS);
            
            //STEP 4: Execute a query
            System.out.println("Creating statement...");
            stmt = conn.createStatement();
            String sql;
            sql = "SELECT id, email FROM Employees";
            ResultSet rs = stmt.executeQuery(sql);
            
            //STEP 5: Extract data from result set
            while(rs.next()){
                //Retrieve by column name
                int id  = rs.getInt("id");
                String last = rs.getString("email");
                
                //Display values
                System.out.print("ID: " + id);
                System.out.println(", email: " + last);
            }
            System.out.println("");
            //STEP 6: Clean-up environment
            rs.close();
            stmt.close();
            conn.close();
            }catch(SQLException se){
            //Handle errors for JDBC
            se.printStackTrace();
            }catch(Exception e){
            //Handle errors for Class.forName
            e.printStackTrace();
            }finally{
            //finally block used to close resources
            try{
                if(stmt!=null)
                stmt.close();
                }catch(SQLException se2){
            }// nothing we can do
            try{
                if(conn!=null)
                conn.close();
                }catch(SQLException se){
                se.printStackTrace();
            }//end finally try
        }//end try
        System.out.println("Goodbye!");
    }
}